Engine/Transmission (1998.5 - 2002) What size injectors

[Dodge5256]

I am curently in the market for an 5" exhaust system and HX40 Turbo, and some injectors. The question is what injectors? (i already have an EZ) i dont wanta go so large that it will compermise my ability to tow a heavy trailer up steep mountan grade. i also wouldent mind my truck being able to leave a desent size cloud of smoke when i want it to. i am also interested in getting into some DHRA pulls in the futrure. I was tinking maybe a set of F1 mach 4's. what ever they are i have to be able to find them used. i just wantad to see what others think of this idea and if it would work.

any feed back is much appreciated.

 

[HeavyHauler]

I would recommend the Mach 4s with an HX40. You should be around 400HP with an EZ, Mach 4s, and an HX40 I would think, and that is a really good place to be if you're going to run an HX40-size turbo.



As for the 5" exhaust, I would reconsider that. You won't see any performance gains and you will notice a lot more drone. I'd stick with a 4" system.



Good luck!

 

[Yooper1]

Go to www.powerbypoole.com and read the recommendations for your type of turbo. . I would use a set of 1. 6 or dd2's.

Talk with Olee and ask him. . I think 4's are way too big. That for a b1 turbo.

 

[HeavyHauler]

Yooper1 - I'm running Mach 5s (200HP) with a 62/12 turbo and things are staying cool. A full B1 is a waste unless your running 500+ HP. Also, 1. 6s wouldn't even get him to 350HP, and at that point, you don't need a turbo upgrade (I have run that combination). An HX40 would be a lag pig at that point. An HX40 is a pretty good size charger and does well between 375-425HP. It would be just right for 4s.

 

[Jetpilot]

The 4's would be pretty hot pulling a steep mountain grade at any kind of altitude..... Dodge5256, what altitude would you be towing at, how heavy, and what % grade. Normally I would say if you tow in higher altitudes and heavy loads then something like a 2. 5 would be a good choice.



Doug

 

[Yooper1]

I stand corrected. I just read towing and hills. Hey, the question was asked. .

I answered based on what I though. 4's will be hot under any load. That's a fact.

 

[metal tech]

Dodge 5256, give Olee Poole a call, he'll give you the info you need to get the injectors that will allow you to tow in the hills. He just did studs & o-rings on my truck and was able to hit 1400 pre turbo not at WOT. I have Mach 4's, HX40, EZ on timing only, 4" downpipe w/ 5" straight pipe for the exh sys.



Al

 

[Dodge5256]

The 4's would be pretty hot pulling a steep mountain grade at any kind of altitude..... Dodge5256, what altitude would you be towing at, how heavy, and what % grade. Normally I would say if you tow in higher altitudes and heavy loads then something like a 2. 5 would be a good choice.



Doug

I live in Arizona as of right now, but I spend a lot of time up in Tahoe during the summers. The trailer that I would be towing the most weights in at just over 10K. after doing these modifications I would like my truck to be able to tow anything that I can hook to the class 5 hitch (I cant tow a 5th wheel because my truck is lifted). I also want my EGT to say below 1200* Pre turbo. As of right now with the ez on level 3 I can hit 1200 if I try hard. Would going with a set of F1 Mach 3’s and putting the EZ on power level 1 work better for towing? Besides towing I would also like my truck to be fast off the line (im tired of being shown up by chipped fords and chevys),i got beet by a v4 explorer the other day. I also would like to be able to outdo one of my friends back home who has a 24V with a DD3, ez, and a tst. (I plan to get a tst for drag racing some time in the future) Iv done some reading on the HX40’s and iv read that it is slow at spooling up from a dead stop, what would be some other options. Also how much more smoke would I see with the 3’s and ez on 2 or 3 as compared to with just the ez alone?

 

[Jetpilot]

Tahoe is an altitude of just over 6200' MSL that long with the grades of the roads plus a 10k trailer would be too much for the Mach 4's and a HX-40. Really what you would need for that load and altitude is a good set of twins... ... But another option would be to limit the injector to your most taxing usage, altitude and load will limit you to something along the line of a Mach 2 to a Mach 2. 5. If you want more power when not towing heavy why not exchange the EZ for an Edge Comp? This would allow you you to be able to tow plus add more fuel when the conditions warrant. Using a setup like this would really give you the best of both worlds.



You are still in need of a turbo upgrade. Anytime you go with a larger turbo you are going to give up some on the bottom. PDR has a nice HX-40 that spools very nice that would be well suited for what you want. HTT makes several turbos that would fit the bill, although I would recommend not clipping the wheel and going with the larger exhaust housing. There is the B-1 line of turbos, for you a B-1-2 would be very nice. There are several HX-35/40 hybrids out there but you will be happier with the cooling of a larger turbo especially while towing.



Doug

 

[Dodge5256]

Tahoe is an altitude of just over 6200' MSL that long with the grades of the roads plus a 10k trailer would be too much for the Mach 4's and a HX-40. Really what you would need for that load and altitude is a good set of twins... ... But another option would be to limit the injector to your most taxing usage, altitude and load will limit you to something along the line of a Mach 2 to a Mach 2. 5. If you want more power when not towing heavy why not exchange the EZ for an Edge Comp? This would allow you you to be able to tow plus add more fuel when the conditions warrant. Using a setup like this would really give you the best of both worlds.



You are still in need of a turbo upgrade. Anytime you go with a larger turbo you are going to give up some on the bottom. PDR has a nice HX-40 that spools very nice that would be well suited for what you want. HTT makes several turbos that would fit the bill, although I would recommend not clipping the wheel and going with the larger exhaust housing. There is the B-1 line of turbos, for you a B-1-2 would be very nice. There are several HX-35/40 hybrids out there but you will be happier with the cooling of a larger turbo especially while towing.







Doug

iv looked into the b 1-2 turbos and there is no way that i can afford one at this time, same with the twins, the only way i can see twins being a posibility is if i build them my self. for this project i am limited to spending 800 or less on a used turbo, and 500 or less on injectores either new or used. iv been watching the clasified ads. from what i can see my choses are dd3's or dd2 as far as smaller injectors go. from what iv read about the dd2 and dd3 is the dd2 only add 80 hp with is less that what i would like, the dd3 add 100 hp but it come on late in the power band and it looks like the dd3's dont realy produce any usable power untill u hit between 2-3 k RPM whitch rules them out im my mind. what would i have to do to be able to run Mach 3's, i know there are some people out there runing m3 with the stock turbo. what would EGTs be like with m3s and a HX-40 unloaded, and would i beable to get away with that this setup towing if u tryto keep my RPMs up and keep a close eye on the pyromitor. i do plan to get twin withing the nexted few years, i just cant afford then right now. I know it would be an better idea to get mach 2's but i just cant find them for under 600.

 

[Jetpilot]

You are correct in there are some guys running mach 3's with OEM turbos but they are not really towing 10K trailers @ 6000+ MSL either... . If you were going to stay on pretty flat ground near sea level you could get away with the bigger injectors. To use the Mach 3's as you mention " I would like my truck to be able to tow anything that I can hook to the class 5 hitch (I cant tow a 5th wheel because my truck is lifted). I also want my EGT to say below 1200* Pre turbo. " you will need a turbo that can really flow the air, its very hard to keep engine temps down with lots of fuel, thin air, steep grades, and a heavy load.



In comparing the Formula 1 injectors to other extrude honed injectors you will see more heat and smoke for a give HP rating with the extrude honed injectors than with Formula 1 injectors..... So basically the Mach 3 is 10 HP more than a DD Super Mental and will have less smoke and egt! A Mach 2. 5 is right around the 120 HP mark that makes them on par HP wise with the Super Mentals, so to compare DD3's (100 HP) you would need to look at Mach 2's (105 HP) and again you would have lower egt's and less smoke.



I don't recommend towing by the pyro as I have seen several motors ruined this way due to faulty pyros. I would get the turbo you can afford and then match up the best injector to your needs.



Doug

 

[darkhorse]

My DZ 14 is keeping things cool for me with mach 3. 8's. I only tow 7k though & only about 1,000 ft. msl. Still, the DZ is a lot of spinner for the $$'s

 

[DHayden]

Just my . 02 cents here and I know it's hard but... . I would wait a little while until you could step up to a good turbo. You will thank yourself for waiting and end up spending allot less money you can put elswhere. The DZ is fairly affordable and can run a decent injector, it's a little small for my taste but I think it's the minimum you would want to have to be happy later.